Woodworking-machine.



No. 692,487. Patented Feb. 4, I902.

T. SHURMER. WOODWOBKING MACHINE.

(Application filed July 21, 1899.)

5 Sheets-Sheet I.

(No Model.)

TH: Noam PEYERS co, FHOTO-LITNO.. WASWNGTON, a.

No. 692,487. Patented Feb. 4, I902.

T. SHURMER.

WUDDWUBKING MACHINE.

lApplication filed July 21, 1899.] (No Model.) '5 Sheets-Sheet 2.

m2 "cams PETERS co. Pnmcmmu. WASNINCITON, n c.

No. 692,487. Patented Fb. 4, I902.

T. SHURMER. WUUDWOBKING MACHINE.

(Application filed July 21, 1899.)

5 ShBeiS Sh66t 3.

(No Model.)

FEE

, n c, THE ncams runs on, mowuwo. msummou No. 692,487. Patented Feb.4,1902.

T. SHURMER.

WOODWORKING MACHINE.

- (Application filed July 21 1899.)

5 Sheets-Sheet 4.

(No Model.)

His-1 Mair/hub.

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THE NORRIS PETERS co, [main-LIME).v msnwo'romn c.

No. 692,487. Patented Feb. 4, I902.

T. SHURMEB. WOODWORKING MACHINE.

(Application filed July 21, 1899.) (No Model.) 5 sheets-sheet 5.

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TTED STATES PATENT OFFICE.

THOMAS SHURMER, OF BOLTON, ENGLAND.

WOODWORKlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 692,487, dated February4, 1902.

Application filed July 21, 1899.

To all whom 2'25 may concern:

Be it known that I, THOMAS SHURMER, a subject of the Queen of GreatBritain, and a resident of 306 Manchester road, Bolton, in the county ofLancaster, England, have invented a certain new and usefulWoodworking-Machine, of which the following descrip tion, together withthe accompanying sheets of drawings, is a specification.

The object of this invention is the production of comparativelyinexpensive mechanism that maybe employed for cutting, trenching, orgrooving wood, as is necessary for forming circular or curved molds,grooving the sides or checks for staircases, and other operations of asimilar nature and that in an expeditious and efiicient manner. Toattain this object, I make use of the devices hereinafter described, thesame being illustrated by the accompanying sheets of drawings, in whichFigure 1 is a side elevation of the machine. Fig. 2 is a front View ofsaid machine. Fig. 3 is a plan of the tables and parts of said machine;Fig. 4 is a part-sectional elevation of said tables. Figs. 5, 6, and 7are front and side elevation and sectional plan, respectively, of one ofthe forms of cutters Which I make use of. Figs. 8 and 9 are side andsectional elevations of parts in detail, illustrating how the height ofthe cutter may be regulated. Figs. 10, 11, and l2are plan, elevation,and sectional elevation, respectively, showing one of the movable tablesand its several parts in detail. Figs. 13 and 14 are plan and elevationof a modified form of attachment for the table shown by Fig. 10. Figs.15, 16, and 17 are elevation, plan, and sectional View illustratingmeans whereby the movements of the table are automatically performed.

Like letters and figures of reference indicate like parts throughout theseveral views.

A indicates the framework of the machine.

In accordance with my invention I arrange a cutter a so that itsoperating-spindle b may slide vertically in its bearings c c to advancetoward or recede from its Work, as hereinafter deseribethits rotarymotion being derived from the prime motor-shaft cl, through the pulleyse c e and the belt f, the spindle carrying a feather or keyway Z), sothat al- Serial No. 724,692- (No model.)

though free to slide through the pulley c it may be rotated by it. Thespindle Z) passes through the coupling-piece g, to which the screw it issecured, in order that said screw it may act as a connecting-rod tocouple the lever is to the spindle b. The lever is pivoted at is to thearm 1n, hinged at m to the holding-arm m, so that the operative may movethe cutter a vertically by means of the handle m ,thecounterbalancing-weight 7c assisting him in his operations, while theholding-arm m allows the guide-pulleys e to be carried by theirsupporting-arms c (pivoted at 3) to any position that the tension of thedriving-beltf may necessitate, a screw f securing same in position.

When the cutter a has to operate only to a given depth, its descent maybe arrested by the adjustable arrester a, secured to the Figs. 8 and 9,)the screw 72 being to enable the adjustment of the piece 9 relativelywith the pivotal centers h and is, while when the cutter a has tooperate in a fixed plane then the sleeve k is locked in position by thehandscrew h in which case the lever is ceases to raised or lowered byturning the screw it by means of the hand-wheel h.

Beneath the cutter a I mount a table 0, which I arrange so that it maybe revolved upon the framework A when desired or which when not requiredto move may be secured rigidly thereto by the screw 0. When this table 0has to rotate, its motion may be effected manually by the operative, inwhich case its simple bearings (shown by Figs. 1 and 2) are employed, ormotion may be transmitted to it from the shaft cl, gearing-wheels at, 5,6, and 7, and shaft 8, as shown by Fig. 17. Upon the table 0 I mountanother tablep, which I arrange by its dovetailed strip p to slide overthe table 0 by taking into a groove made in the table 0 to receive same,as well as to rotate upon said strip 19 about the pivotal pin 10 Thesliding movements of this table p, as Well as its rotary motion, mayalso be performed manually by the operative, in which case their simplemountings (shown by 4) may be made use of, or by (see Figs. 15, 16, andthrough the table 0 Figs. 1, 2, 3, and arranging the shaft 9 17) toextend centrally framework A by the hand-screw u, (see also be used,and, if desired, the part 9 may be ment with the wheel16 and isprevented from and carry a gear-wheel 10, meshing with a l wheel 11,secured to a screwed shaft 12, pivotally mounted to said table 0, rotarymotion may be transmitted from the shaft 8 through the gears 13 and 14to said shaft 12, from which rotary motion when desired may betransmitted to the table 1) by the gears 15 and 16. However, as theshaft 12 is a screwed shaft (and the wheel 15 moves along it on a keywayor feather) when the half-nut 17, mounted in the bearings 18, secured tothe slide 19, is putinto gear with it said screw 12 will transmit thesliding movement to said table 13, as desired. Olutch-coupling devicesor ordinary set-screws may be employed for securing the wheels 6 and 15to their respective motors or releasing same therefrom when one or theother is or is not desired to be employed. The arrangement of gearing issuch as to enable the tables 0 and 1) to be rotated separately ortogether and also that the table 19 may be antomatically fed along itsgroove on the table 0 when desired. The gear 6 is mounted on the shaft 8and gears with the wheel 7, fixed on a hollow shaft surrounding 'theshaft 9, the upper end of said hollow shaft being rigidly connected tothe central depressed portion of the table 0. By this means said table ois rotated. By forming the wheel G-so that it maybe readily disconnectedfrom its shaft, so as to be loose thereon, the table 0 may be rotated byhand as and whenever desired.

The table 19 is rotated from the shaft 8 by the following means: Thegear 13, mounted on said shaft 8, drives the gear 14, mounted on thelower end of the shaft 9, having the wheel 10 at its upper end. Saidwheel 10 meshes with the wheel 11, mounted on and driving the screw-shaft 12. The wheel 15 is mounted on the shaft 12 and is connectedthereto by means of a spline or feather, so that said wheel 15 mayalways be positively driven by the shaft 12, while said shaft 12 is freeto move longitudinally through said wheel 15. Said wheel 15 is held inengagemoving along its axis with the shaft 12 by means of a bracketextending from the table 19, as shown in Fig. 17, and engaging a groovein the hub of said wheel 15. Since thewheel 15 gears with the wheel 16on the shaft of the table 19, the latter is rotated by it. The halfnut17, carried by the projection on the slide 19 of the table, may be movedand held in or out of gear with the shaft 12 by any suitable means. Whensaid half-nut rests upon the screw-shaft 12, the slide p of the table 19is moved along its groove in the table 0 automatically. By forming thewheel 16 so that it may be disconnected from the shaft, so as to beloose thereon, the table 1) may be rotated by hand as and whenevernecessary. By applying any well-known reversing motion to the shaft (Z,such as indicated by the arrangement of pulleys shown in dotted lines inFig. 17, the several movements may be transmitted in either direction.

From the foregoing it will be seen that when a piece of wood is securedto the table p (by the clamping device 19 or by any other means) it maybesubjected to the actions of the cutter Ct and guided or moved in manyand varied paths relatively therewith to be treated as may be desired.

The cutter a is preferably made, when for plain work, of curved form,(shown by the sectional drawing, Fig. 7,) and its attachment to thespindle b is preferably by the slotted part 6 so that adjustment tocompensate for wear through usage may be effected as well as adjustmentto enable the cutter Ct to be taken by its [said spindleb through agreater path of motion.

For producing molds on circular parts, as well as straight pieces, theform of the cutter a is made of a corresponding shape, as is wellunderstood, while for passing long articles to be treated by said cutterover the top of the table 19 I may use a guide piece or fence 20, asshown by Figs. 13 and 14:. r

If desired, a cutter 21, arranged to rotate in the vertical plane,asshown in broken lines, Fig. 1, may be made use of when found desirable,sinceits rotary motion may be readily derived from the shaft 01 throughthe pulleys 22 and 23 and the shaft 2i.

Such being the nature and object of my invention, what I claim is- Awoodworking-machine comprising in its construction a work-supportingtable, a Vertically-movable spindle carrying a cutter at its lower end,means for rotating said spindle, a controlling-lever, an adjustableconnection between said lever and the spindle whereby the verticalmovement of the spindle maybe controlled, and means for locking the saidconnection for preventing vertical movement of the spindle and thecutter.

In testimony whereof I have affixed my sig* nature in the presence oftwo witnesses.

THOMAS SHURMER.

Witnesses:

SAMUEL HEY, DAN DUTTON.

